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The combination of a decorative non-functional window shutter and a one-piece plastic fastener, and a method of mounting the same to a building wall. The shutter is made of molded plastic or aluminum. The fastener is of non-corrosive plastic construction having a plurality of angled resiliently-defo

The combination of a decorative non-functional window shutter and a one-piece plastic fastener, and a method of mounting the same to a building wall. The shutter is made of molded plastic or aluminum. The fastener is of non-corrosive plastic construction having a plurality of angled resiliently-deformable teeth which, when inserted through a hole in the shutter into a mounting hole formed in a building wall, tend to flex in the direction of insertion and tend to return to their original position to resist removal.

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1. In building trim construction, the combination comprising a decorative non-functional window shutter of ornamental lightweight construction such as aluminum or plastic and having a plurality of mounting openings, and a one-piece fastener of non-corrosive plastic construction adapted to be receive

1. In building trim construction, the combination comprising a decorative non-functional window shutter of ornamental lightweight construction such as aluminum or plastic and having a plurality of mounting openings, and a one-piece fastener of non-corrosive plastic construction adapted to be received by interference press fit in a preformed hole in a building wall for rigidly mounting said shutter, said fastener comprising a body, said body including a head portion, a first portion extending from said head, a second portion extending from said first portion and a free end portion, said second portion being formed with longitudinally spaced pairs of diametrically opposed teeth separated by slots and extending radially outwardly from a base and axially toward said head portion, the circumferential extent of each tooth being greater than ninety degrees, each said tooth being of generally uniform thickness and extending toward said head portion at an acute angle, adjacent teeth being connected to one another at said base by a curved portion, the length and axial spacing of said teeth being such that each tooth can flex radially inwardly independently of the adjacent tooth as the fastener is forced through the openings and will flex back to its original position after passing through the opening in the shutter without deforming the opening and will thereafter yieldingly engage the sides of said opening in the building without deforming said opening, each said tooth comprising an outer surface and an inner surface, said outer surface of each said tooth lying in a conical plane and said inner surface of each said tooth lying in a conical plane, the outer surface of one tooth being joined to the inner surface of the adjacent tooth, said conical plane of said outer surface forming a greater angle with a radial plane than the angle of said conical plane of said inner surface forms with a radial plane, each said tooth having an axial peripheral surface, each said tooth having a radial surface extending inwardly from said axial surface to said inner surface. 2. The combination set forth in claim 1 wherein said outer surface of each said tooth lying in a conical plane forms an angle of substantially 40° with a radial plane, said inner surface of each said tooth lying in a conical plane forming an angle of substantially 40° with a radial plane. 3. The combination set forth in claim 1 or 2 wherein said fastener has a conical free end, the maximum diameter of said conical free end being greater than the diameter of said second portion. 4. The combination set forth in claim 3 wherein said fastener includes a tapered surface in each slot extending from the periphery of the outer surface of the first portion and tapering toward the periphery of the surface of the second portion. 5. A fastener for insertion through aligned openings in a non-functional decorative shutter and a portion of a building to support the shutter which comprises a one-piece body of plastic material, said body including a head portion, a first portion extending from said head, a second portion extending from said first portion and a free end portion, said second portion being formed with longitudinally spaced pairs of diametrically opposed teeth extending radially outwardly from a base and axially toward said head portion, the circumferential extent of each tooth being greater than ninety degrees, each said tooth being of generally uniform thickness and extending toward said head portion at an acute angle, adjacent teeth being connected to one another at said base by a curved portion, the length and axial spacing of said teeth being such that each tooth can flex radially inwardly independently of the adjacent tooth as the fastener is forced through the openings and will flex back to its original position after passing through the opening in the shutter without deforming the opening and will thereafter yieldingly engage the sides of said opening in the building without deforming said opening, each said tooth comprising an outer surface and an inner surface, said outer surface of each said tooth lying in a conical plane and said inner surface of each said tooth lying in a conical plane, the outer surface of one tooth being joined to the inner surface of the adjacent tooth, said conical plane of said outer surface forming a greater angle with a radial plane than the angle of said conical plane of said inner surface forms with a radial plane, each said tooth having an axial peripheral surface, each said tooth having a radial surface extending inwardly from said axial surface to said inner surface. 6. The fastener set forth in claim 5 wherein said outer surface of each said tooth lying in a conical plane forms an angle of substantially 45° with a radial plane, said inner surface of each said tooth lying in a conical plane forming an angle of substantially 40° with a radial plane. 7. The fastener set forth in claim 6 wherein said fastener has a conical free end, the maximum diameter of said conical free end being greater than the diameter of said second portion. 8. The fastener set forth in claim 7 wherein said fastener includes a tapered surface in each slot extending from the periphery of the outer surface of the first portion and tapering toward the periphery of the surface of the second portion. 9. A kit for mounting ornamental non-functional residential shutters consisting essentially of a pair of decorative shutters of lightweight ornamental construction such as aluminum or plastic and at least eight one-piece fasteners of weather resistant plastic construction, each said fastener comprising a one-piece body of plastic material, said body including a head portion, a first portion extending from said head, a second portion extending from said first portion and a free end portion, said second portion being formed with longitudinally spaced pairs of diametrically opposed teeth separated by slots and extending radially outwardly from a base and axially toward said head portion, the circumferential extent of each tooth being greater than ninety degrees, each said tooth being of generally uniform thickness and extending toward said head portion at an acute angle, adjacent teeth being connected to one another at said base by a curved portion, the length and axial spacing of said teeth being such that each tooth can flex radially inwardly independently of the adjacent tooth as the fastener is forced through the openings and will flex back to its original position after passing through the opening in the shutter without deforming the opening and will thereafter yieldingly engage the sides of said opening in the building without deforming said opening, each said tooth comprising an outer surface and an inner surface, said outer surface of each said tooth lying in a conical plane and said inner surface of each said tooth lying in a conical plane, the outer surface of one tooth being joined to the inner surface of the adjacent tooth, said conical plane of said outer surface forming a greater angle with a radial plane than the angle of said conical plane of said inner surface forms with a radial plane, each said tooth having an axial peripheral surface, each said tooth having a radial surface extending inwardly from said axial surface to said inner surface. 10. The combination set forth in claim 9 wherein said outer surface of each said tooth lying in a conical plane forms an angle of substantially 45° with a radial plane, said inner surface of each said tooth lying in a conical plane forming an angle of substantially 45° with a radial plane. 11. The combination set forth in claim 10 wherein said fastener has a conical free end, the maximum diameter of said conical free end being greater than the diameter of said second portion. 12. The combination set forth in claim 11 wherein said fastener includes a tapered surface in each slot extending from the periphery of the outer surface of the first portion and tapering toward the periphery of the surface of the second portion. 13. A method of mounting a decorative shutter to an external residential wall comprising the steps of (a) providing a shutter of lightweight decorative construction and having a plurality of mounting holes extending transversely therethrough, (b) providing a plurality of one-piece fasteners of non-corrosive resilient plastic construction, each said fastener comprising a one-piece body of plastic material, said body including a head portion, a first portion extending from said head, a second portion extending from said first portion and a free end portion, said second portion being formed with longitudinally spaced pairs of diametrically opposed teeth extending radially outwardly from a base and axially toward said head portion, the circumferential extent of each tooth being greater than ninety degrees, each said tooth being of generally uniform thickness and extending toward said head portion at an acute angle, adjacent teeth being connected to one another at said base by a curved portion, the length and axial spacing of said teeth being such that each tooth can flex radially inwardly independently of the adjacent tooth as the fastener is forced through the openings and will flex back to its original position after passing through the opening in the shutter without deforming the opening and will thereafter yieldingly engage the sides of said opening in the building without deforming said opening, each said tooth comprising an outer surface and an inner surface, said outer surface of each said tooth lying in a conical plane and said inner surface of each said tooth lying in a conical plane, the outer surface of one tooth being joined to the inner surface of the adjacent tooth, said conical plane of said outer surface forming a greater angle with a radial plane than the angle of said conical plane of said inner surface forms with a radial plane, each said tooth having an axial peripheral surface, each said tooth having a radial surface extending inwardly from said axial surface to said inner surface, wherein said fastener has a conical free end, the maximum diameter of said conical free end being greater than the diameter of said second portion, said fastener including a tapered surface in each slot extending from the periphery of the outer surface of the first portion and tapering toward the periphery of the surface of the second portion, (c) forming a plurality of mounting holes of preselected diameter less than said predetermined diameter in said wall at locations corresponding to locations of said mounting holes in said shutters, (d) positioning said shutter over said wall such that mounting holes in said shutters align with mounting holes formed in said wall, and (e) inserting each of said fasteners into a corresponding pair of aligned mounting holes in said shutter and said wall by interference press fit until said head portion clamps said shutter against said wall such that said teeth flex in the direction of said head portion by the opposing surfaces of said formed hole during insertion into said formed hole and resiliently engage said opposing surface so as to resist removal from said formed hole.